Knorr-Bremse Four Circuit Prot. Valve K011255
K011255, K 01 12 55, K.01.12.55
Product Overview
The Knorr-Bremse Four Circuit Protection Valve K011255 is a vital component in modern air brake systems for commercial vehicles. Its primary function is to distribute and regulate compressed air across four independent circuits, ensuring that system stability and safety are maintained even in the event of pressure loss in one or more lines. Designed with precision and built to Knorr-Bremse’s exacting standards, this valve guarantees optimal system pressure control and fault tolerance in demanding operating conditions.
Key Features
- OEM Part Number: K011255
- Function: Distributes and maintains air pressure across four braking circuits
- Design: Compact aluminum alloy body with anti-corrosion treatment
- Inlet and Outlet Ports: Standard air brake port configurations
- Features: Integrated pressure protection, unloading valve, and circuit priority logic
- Application: Suitable for EBS and conventional air brake systems
- Certifications: Compliant with ISO/TS 16949 and ECE R13 standards
- Country of Origin: Germany
What’s Included in the Kit
- 1 x Knorr-Bremse Four Circuit Protection Valve (Part No. K011255)
- Protective caps or plugs on ports (as applicable)
- Mounting instructions or technical documentation (available upon request)
- Manufacturer identification label with QR/barcode
Wholesale Buyer Benefits
- Bulk order discounts and price tiering for fleet buyers and resellers
- Ready stock available at AAA Trading’s Dubai facility
- Assistance with custom documentation for export markets
- Consolidation of multi-brand parts for reduced shipping costs
- Dedicated B2B support and reorder facilitation
Applications and Compatibility
The K011255 Four Circuit Protection Valve is designed for use in:
- Heavy-duty trucks and buses equipped with pneumatic brake systems
- Trailers and semi-trailers with air brake and auxiliary systems
- Vehicles requiring separate management of service, emergency, auxiliary, and parking brake circuits
- Compatible with air brake systems from MAN, Scania, Mercedes-Benz, Volvo, Renault, Iveco, and others
Please verify specific fitment through OEM catalogs or by consulting AAA Trading’s technical team.
Warranty and Product Authenticity
- 12-month limited manufacturer’s warranty
- 100% authentic Knorr-Bremse product with traceable lot number
- Delivered in original sealed packaging with factory markings
- Backed by AAA Trading’s product authenticity assurance policy
Why Choose AAA Trading Dubai
- Authorized distributor of European commercial vehicle parts
- Headquartered in Dubai with regional and global shipping capabilities
- Expertise in brake system components and application matching
- Competitive pricing, rapid turnaround, and professional customer service
- Trusted by service centers, fleets, and parts resellers across the Middle East, Africa, and Asia
Shipping & Delivery Policy
At Triple A Trading, we are committed to fast, reliable shipping to ensure our clients receive their automotive spare parts without unnecessary delays. We are a registered business in Dubai, United Arab Emirates. For more information about business registration, please visit the Dubai Trade Portal.
Order Processing Time
All orders are processed within 1-3 business days following payment confirmation. You'll receive a notification once your order has been dispatched.
Shipping Options & Delivery Timeframes
- Standard Shipping – Delivered within 5-7 business days
- Expedited Shipping – Delivered within 3-5 business days
- Express Shipping – Delivered within 1-3 business days
Shipping Costs
Shipping rates are calculated based on your order’s weight and destination. The total shipping cost will be clearly displayed at checkout before finalizing your order.
International Shipping
We proudly serve customers across Africa, Europe, Asia, and the Middle East. Please note that international shipments may be subject to customs duties and taxes, which are the customer’s responsibility.
Triple A Trading works diligently to ensure smooth cross-border deliveries, minimizing delays due to customs or political complications. For more details, please refer to the Dubai Customs official website.
Order Tracking
Once your order ships, you'll receive a tracking number via email, which can be used to monitor the shipment through the carrier's website.
Delivery Issues
If you experience any issues with your delivery, such as delays or missing items, please contact our customer service team:
- Email: sales@triple-a-trading.com
- Phone: +971 50 443 1871
We’re here to assist you and ensure your order is resolved quickly and efficiently.
Thank you for choosing Triple A Trading – Your trusted source for quality automotive spare parts, delivered with speed and care.
Frequently Asked Questions (FAQs)
What is the Knorr-Bremse Four-Circuit Protection Valve K011255 used for?
The Knorr-Bremse K011255 four-circuit protection valve is designed to distribute and protect compressed air in commercial vehicle brake systems. It ensures that failure in one circuit does not affect the performance of the others, maintaining safe operation of essential vehicle systems.Which vehicles is the K011255 valve compatible with?
This valve is commonly used in European trucks and buses, including models from MAN, Volvo, Mercedes-Benz, and IVECO. Always verify compatibility using the OE number or consult our technical team with vehicle details.Is K011255 an original Knorr-Bremse component?
Yes, this is a 100% original Knorr-Bremse product. We supply parts directly from certified distribution networks, ensuring authenticity and warranty protection.Can I order the K011255 valve in bulk at wholesale pricing?
Yes, bulk ordering options with discounted wholesale pricing are available. Please email us at sales@triple-a-trading.com with your quantity and delivery location for a custom quote.Are there any OE or cross-reference numbers for this part?
Primary reference: K011255. Other equivalent numbers may be available depending on vehicle manufacturer or brake system design. Contact us for assistance in cross-referencing with your current part number.Do you provide global shipping for this valve?
Yes, we offer worldwide shipping from our warehouse in Dubai. We partner with reputable freight carriers to ensure fast and secure delivery, along with full export documentation support.What is the average lead time for delivery of bulk orders?
Standard lead time is 2–5 business days depending on order volume and destination. Expedited options are available for urgent shipments.Is there a warranty on the Knorr-Bremse K011255 valve?
Yes, we provide a 12-month warranty against manufacturing defects. Warranty applies only if the valve is installed correctly and used under normal operating conditions.Do you offer technical support or installation assistance?
Yes, our technical team can assist with installation guidance, torque settings, and circuit setup verification to ensure the part integrates correctly into your braking system.How do I verify the authenticity of the K011255 protection valve?
All genuine Knorr-Bremse parts come with a unique serial number and/or QR code for verification via the manufacturer’s platform. We can also provide documentation to confirm origin upon request.Related products
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Product Overview
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- Part Number: K003809
- Type: Rationalized Caliper (Air Disc Brake)
- Durable cast housing for heavy-duty applications
- Integrated wear indicators and pad retaining system
- Designed for quick service and reduced downtime
- Compatible with SB/SN/SK-type caliper mounting systems
What’s Included
- 1 x Knorr-Bremse Caliper – K003809 (Rationalized Unit)
- Fitted guide sleeve and hardware (model dependent)
Wholesale Buyer Benefits
- OEM-quality caliper for commercial brake system refurbishments
- Available in large volumes for fleets, workshops, and distributors
- Backed by AAA Trading Dubai’s export expertise
- Compatible with multiple OE and reman platforms
Applications and Compatibility
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- Bus and coach applications
- Compatible with various axle configurations (verify model)
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- 100% Genuine Knorr-Bremse component
- Supplied in original manufacturer packaging
- 12-month limited warranty (terms apply)
Why Choose AAA Trading Dubai
- Direct distributor of Knorr-Bremse and commercial braking parts
- VIN/OE support and technical matching for fleet applications
- Bulk-ready logistics and shipping support to all regions
- Trusted by workshops and OEM rebuilders across MENA and Europe
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Product Overview
The Knorr-Bremse Hand Brake Valve K038809N50 is a high-performance, OEM-grade pneumatic control component designed for use in heavy commercial vehicles. Manufactured by Knorr-Bremse, a global leader in braking systems, this valve ensures reliable manual control of the vehicle's parking and emergency brakes. Its robust construction and precise modulation capabilities make it a preferred choice for fleet operators and service professionals who prioritize safety and long-term reliability.Key Features
- OEM Part Number: K038809N50
- Application: Manual actuation of parking or emergency braking systems
- Body: Durable die-cast aluminum with corrosion-resistant finish
- Modulation: Designed for consistent air pressure control in pneumatic systems
- Operation: Push-pull hand control with defined detent positions
- Porting: Standard air line configurations compatible with major OEMs
- Country of Origin: Germany
- Compliance: Meets ISO/TS 16949 and ECE R13 standards
What’s Included in the Kit
- 1 x Knorr-Bremse Hand Brake Valve (Part No. K038809N50)
- Protective Cap Assembly
- Mounting Hardware (where applicable)
- Installation Guidelines or Technical Data Sheet (upon request)
- Manufacturer Warranty Documentation
Wholesale Buyer Benefits
- Competitive pricing with tiered discounts for bulk orders
- Fast and reliable shipping from our Dubai-based warehouse
- Consolidated shipping options to reduce logistics costs
- Complete documentation support for export and customs clearance
- Dedicated wholesale account management and after-sales service
Applications and Compatibility
This hand brake valve is compatible with a range of heavy-duty commercial vehicles, including:- Trucks from Mercedes-Benz, MAN, Volvo, Scania, Renault, and Iveco
- Semi-trailers and drawbar trailers with pneumatic braking systems
- Intercity buses and long-distance coaches
- Off-road and construction vehicles utilizing air brake systems
Warranty and Product Authenticity
- 12-month limited manufacturer’s warranty from Knorr-Bremse
- 100% genuine OEM product sourced through authorized distribution
- Delivered in original packaging with traceable batch and lot numbers
- Authenticity and performance backed by AAA Trading’s strict sourcing policy
Why Choose AAA Trading Dubai
- Dubai-based supplier with strategic access to global logistics hubs
- Trusted partner for genuine European truck and trailer parts
- Expert staff with technical product knowledge
- Prompt and professional customer service
- Extensive B2B network serving clients across the Middle East, Africa, and Asia
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